Piston for pneumatic automotive lifting device



FIG. 1 is a perspective view of a first presently preferred embodiment of the piston for pneumatic automotive lifting device of my new design;

FIG. 2 is an elevational view thereof from the front, the elevational views from the right, left, and rear thereof being identical;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective cut-away view thereof along the line 5-5 in FIG. 1;

FIG. 6 is a perspective view of a second presently preferred embodiment of the piston for pneumatic automotive lifting device of my new design;

FIG. 7 is an elevational view thereof from the front, the elevational views from the right, left, and rear thereof being identical;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof; and,

FIG. 10 is a perspective cut-away view thereof along the line 10-10 in FIG. 6. 

CLAIM The ornamental design for a piston for pneumatic automotive lifting device, as shown and described. 